Battery interface



FIG. 1 is a front, right, perspective view of a battery interface showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the figures illustrate portions of the article which form no part of the claimed design. 

CLAIM The ornamental design for a battery interface, as shown and described. 